/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hop.ui.hopgui.partition.processor;

import org.apache.hop.core.exception.HopException;
import org.apache.hop.core.util.StringUtil;
import org.apache.hop.ui.hopgui.file.pipeline.IPartitionSchemaSelection;
import org.apache.hop.ui.hopgui.partition.PartitionSettings;
import org.eclipse.swt.widgets.Shell;

public class SpecialMethodProcessor extends AbstractMethodProcessor {

  @Override
  public void schemaSelection(
      PartitionSettings settings, Shell shell, IPartitionSchemaSelection schemaSelection)
      throws HopException {
    String schema =
        super.askForSchema(
            settings.getSchemaNamesArray(), shell, settings.getDefaultSelectedSchemaIndex());
    super.processForKnownSchema(schema, settings);
    if (!StringUtil.isEmpty(schema)) {
      askForField(settings, shell, schemaSelection);
    }
  }

  private void askForField(
      PartitionSettings settings, Shell shell, IPartitionSchemaSelection schemaSelection)
      throws HopException {
    String fieldName = schemaSelection.schemaFieldSelection(shell, settings);
    if (StringUtil.isEmpty(fieldName)) {
      settings.rollback(settings.getBefore());
    }
  }
}
